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Possible evidence for interstellar scattering of radio waves. Long-term variations of the compact radio source, Sgr A * at the galactic center.
Jun-Hui Zhao,R. D. Ekers,W. M. Goss +2 more
- Vol. 34, Iss: 4, pp 1287
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The article was published on 1989-04-01 and is currently open access. It has received 14 citations till now. The article focuses on the topics: Radio wave & Galactic Center.read more
Citations
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Journal ArticleDOI
The galactic center environment
Mark Morris,E. Serabyn +1 more
TL;DR: The central half kiloparsec region of our Galaxy harbors a variety of phenomena unique to the central environment as mentioned in this paper, such as large densities, large velocity dispersions, high temperatures, and apparently strong magnetic fields.
Journal ArticleDOI
Explaining the spectrum of Sagittarius-A* with a model of an accreting black-hole
TL;DR: In this article, the authors presented a new model of accretion onto Sagittarius A*, in which most of the energy released is carried along with the gas and lost into the black hole of mass ∼7 x 105 solar masses, rather than appearing as radiation.
Journal ArticleDOI
Radio Variability of Sagittarius A* - A 106 Day Cycle
TL;DR: In this article, the presence of a 106-day cycle in the radio variability of Sgr A* was reported based on an analysis of data observed with the Very Large Array (VLA) over the past 20 years.
Journal ArticleDOI
New structures near the compact radio source at the galactic centre
TL;DR: In this paper, the authors presented high-resolution (<0.2 arcsec) radio images, made at 2-cm wavelength, of the central arcsecond of the Galaxy.
References
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Journal ArticleDOI
Intense sub-arcsecond structure in the galactic center
B. Balick,R. L. Brown +1 more
Journal ArticleDOI
Observations of the motion and distribution of the ionized gas in the central parsec of the galaxy. II
TL;DR: In this article, the authors used infrared fine-structure line emission from compact clouds of ionized gas within Sgr A West to derive a most probable mass distribution of the clouds.
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Refractive effects in pulsar scintillation
Journal ArticleDOI
Forbidden into Ne II observations of the galactic center Evidence for a massive black hole
E. Serabyn,J. H. Lacy +1 more
TL;DR: The velocity field within two pc of the galactic center has been investigated by observing the forbidden Ne II 12.8 micron fine-structure emission from Sgr West.